{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4EF36-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4EF36-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4EF36-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF36-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA molded case circuit breaker, line protection, 3-pole, 40 A rated continuous current, TM240 thermal-magnetic release, breaking capacity 121 kA at 240 V.","salesMarkdown":"## Line protection breaker with thermal-magnetic release Breaking capacity is specified per voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — figures that govern fault-clearing capability at the point of installation. The TM240 release is adjustable; the long-time delay tr max. is set to 1 second per the datasheet, allowing coordination with downstream devices. Above that threshold the breaker derates: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. Operating minimum is -25 °C, maximum 70 °C. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a 3-pole MCCB sized for standard distribution panel mounting.","metaTitle":"Siemens 3VA1140-4EF36-0AE0 SENTRON MCCB, 40 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1140-4EF36-0AE0 molded case circuit breaker, 40 A rated, 3-pole, line protection. Breaking capacity 121 kA at 240 V. Current lifecycle stage. Available to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"4 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"200 A","Adjustable response value current / lr min.":"28 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"4","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=229335&mlfb=3VA1140-4EF36-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF36-0AE0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-4EF36-0AE0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3VA1140-4EF36-0AE0?","answer":"Rated continuous current Iu is 40 A, breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The thermal-magnetic release is a TM240 with adjustable long-time delay."},{"question":"What is the physical size of this MCCB?","answer":"Height is 130 mm, width is 76.2 mm, and depth is 70 mm. Front face protection is IP40."},{"question":"Does this breaker include auxiliary contacts or communication?","answer":"It includes 4 HQ auxiliary switches for status indication. There is no communication function, no undervoltage release, and no ground-fault monitoring on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4EF36-0AE0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1140-4EF36-0AE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}